Processing

Please wait...

Settings

Settings

Goto Application

1. WO2013007243 - INCREASING THE SOUND ABSORPTION IN FOAM INSULATING MATERIALS

Publication Number WO/2013/007243
Publication Date 17.01.2013
International Application No. PCT/DE2012/000711
International Filing Date 13.07.2012
IPC
C08J 9/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
C08K 3/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
02Elements
04Carbon
E04B 1/82 2006.01
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
62Insulation or other protection; Elements or use of specified material therefor
74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
82specifically with respect to sound only
CPC
B32B 5/245
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non- homogeneity or physical structure ; , i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
22characterised by the presence of two or more layers which ; are next to each other and are fibrous, filamentary, formed of particles or foamed
24one layer being a fibrous or filamentary layer
245another layer next to it being a foam layer
C08J 2205/05
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2205Foams characterised by their properties
04characterised by the foam pores
05Open cells, i.e. more than 50% of the pores are open
C08J 2375/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2375Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
04Polyurethanes
C08J 9/0023
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
0014Use of organic additives
0023containing oxygen
C08J 9/0066
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
0066Use of inorganic compounding ingredients
C08J 9/34
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
34Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
Applicants
  • OTTO BOCK SCHAUMSYSTEME GMBH [DE]/[DE] (AllExceptUS)
  • GANSEN, Peter [DE]/[DE] (UsOnly)
Inventors
  • GANSEN, Peter
Agents
  • LINS, Martina
Priority Data
10 2011 107 693.313.07.2011DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ERHÖHUNG DER SCHALLABSORPTION IN SCHAUMSTOFF-DÄMMSTOFFEN
(EN) INCREASING THE SOUND ABSORPTION IN FOAM INSULATING MATERIALS
(FR) ACCROISSEMENT DE L'ABSORPTION ACOUSTIQUE DANS DES MATÉRIAUX D'ISOLATION EN MOUSSE
Abstract
(DE)
Die Erfindung betrifft die Verwendung von Blähgraphit mit einer Starttemperatur größer oder gleich 150 °C zur Erhöhung der Schallabsorption innerhalb eines mit dem Blähgraphit aufgeschäumten Schallabsorptionsschaumstoffs, wobei der Schaumstoff ein Polyurethanschaumstoff ist. Ein zugehöriger Schallabsorber mit einem wenigstens im Kernbereich offenzelligen Schallabsorptionsschaumstoff aus einem Polyurethan-Integral- oder -Weichschaum besitzt eine Dichte größer oder gleich 120 g/l und einen Gehalt von wenigstens 5 Gew.-% Blähgraphit auf 100 Gewichtsteile an isocyanatreaktiver Komponente, insbesondere Polyol. DerSchallabsorber kann bevorzugt zur Schallabsorption in Motorräumen von Kraftfahrzeugen eingesetzt werden. Der Schallabsorber kann auch sehr vorteilhaft innerhalb komplexerer Bauteile und den konstruktionsbedingten Hohlräumen von Maschinen verwendet werden.
(EN)
The invention relates to the use of expandable graphite having a starting temperature greater than or equal to 150°C for increasing the sound absorption within a sound absorption foam material foamed with the expandable graphite, wherein the foam material is a polyurethane foam material. An associated sound absorber having a sound absorption foam material made of a polyurethane integral foam or polyurethane flexible foam, which is open-cell at least in the core region thereof, has a density greater than or equal to 120 g/l and a content of at least 5 wt% of expandable graphite to 100 parts by weight of isocyanate-reactive components, in particular polyol. The sound absorber can preferably be used for sound absorption in engine compartments of motor vehicles. The sound absorber can also be used very advantageously inside relatively complex components and in the design-dependent cavities of machines.
(FR)
L'invention concerne l'utilisation de graphite expansé ayant une température initiale supérieure ou égale à 150°C pour l'accroissement de l'absorption acoustique, au sein d'une mousse d'absorption acoustique expansée avec le graphite expansé, la mousse étant en polyuréthanne. Un absorbant acoustique correspondant, présentant une mousse d'absorption acoustique à alvéoles ouverts au moins dans la zone centrale et formé d'une mousse intégrée ou d'une mousse souple en polyuréthanne, possède une densité supérieure ou égale à 120 g/l et une teneur d'au moins 5% en poids de graphite expansé pour 100 parties en poids d'un constituant réactif isocyanate, notamment d'un polyol. L'absorbant acoustique peut être utilisé de préférence pour l'absorption acoustique dans des compartiments moteurs de véhicules à moteur. L'absorbant acoustique peut également être utilisé, de manière très avantageuse, à l'intérieur d'éléments structuraux complexes et de cavités de machines résultant de leur conception.
Latest bibliographic data on file with the International Bureau